Linq EF Include()包含Select()新类型丢失

Question

context.Projects
.Include(x => x.Members) //List<Member> public class Member
.Include(x => x.Members.Select(z => z.City)) //public class City
.ToList(); 

从项目中选择

包括项目清单.成员

包括project.Members.City中的每一个

需要添加一些数据到结果

context.Projects
.Include(x => x.Members) 
.Include(x => x.Members.Select(z => z.City)) 
.Select(x => new {
    Project = x,
    Amount = 22
})
.ToList(); 

项目属性已填充但成员为空

问题1 -如何包括Project.Members与新{项目= X}

我接下来做

context.Projects
.Include(x => x.Members) //List<Member>
.Include(x => x.Members.Select(z => z.City)) //City is navigation property
.Select(x => new {
    Project = x,
    Members = x.Members,
    Amount = 22
})
.ToList(); 

填充项目属性并填充成员但成员[0] .City为空

问题2 - 如何填写会员[0].城市

PS

EntityFramework 6

public class Project
{
    public Guid Id { get; set; }
    public string Name { get; set; }
    public List<ProjectMember> Members { get; set; }
}

public class ProjectMember
{
    public Guid ProjectId { get; set; }
    public Project Project { get; set; }

    public Guid CityId { get; set; }
    public City City { get; set; }
}

PSS

这项工作 - 但代码开销

context.Projects
.Include(x => x.Members) //List<Member>
.Include(x => x.Members.Select(z => z.City)) //City is navigation property
.Select(x => new {
    Project = x,
    Members = x.Members.Select(z => new {
        Item = z,
        City= z.City
    }).ToList(),
    Amount = 22
})
.ToList(); 

Answer 1

在包含之后执行的任何操作(过滤除外)都将导致包含被丢弃.通过AsEnumerable在包含之后调用,您将确保执行查询,其余操作将在内存中完成:

context.Projects 
       .Include(x => x.Members) 
       .Include(x => x.Members.Select(z => z.City))
       .AsEnumerable() 
       .Select(x => new { Project = x, Amount = 22 }) 
       .ToList();